We don't know if you've noticed, but the names that begin with the letter "H" have a kind of peculiarity that is hard to explain. Phonetically, it probably relates to the fact that H is a dull consonant, so it pleases virtually every noun because it does not change - as long as the sound is not loud - but gives it another form.
You've probably noticed that the names with H have some kind of musicality. Despite being a dull sound, there is a noticeable difference with Hannah and Anna, Enrik and Henry or Elio and Helio. Hannah, Henry, and Helio come more pompous, more "bombastic" if we may call them that.
Just read the following list to understand the difference.
Guys:
Henry, Henley, Helio / s, Harley, Hector, Hadley, Harry, Harlin, Haiden, Hadis, Henry etc.
Girls:
Helen, Hannah, Hanel, Halina, Harley, Harlin, Hannah, Harper, Hera, Haris, Hail, Haidi, Heidi etc.